baber/WOPTO huggingface dataset:
Patent GB-464249-A (GB)
Title: Improvements relating to metal aeroplane bodies
IPC: B64C1/06
Filed: 1936-08-24
Abstract: 464,249. Monocoque aircraft bodies. MESSERSCHMITT, W. Aug. 24, 1936, No. 23233. [Class 4] A monocoque metal aeroplane body is constructed in sections, each section having one edge flanged or shaped to form a frame, the inturned edge of one section being overlapped by the unbent edge of the next adjacent section. A body, Fig. 1, comprises an upper and lower half each built up of a number of sections a<1>, a<2> each formed at one end with a flange c, the sections being overlapped and being connected by rivets as shown in Fig. 3, or by bolts, screws, welds or other means. Longitudinal stiffeners d, which may be shaped as shown in Fig. 2, are secured to 'the walls of the sections and pass through apertures in flanges c. Stiffeners d may be continuous or of a length corresponding to each section, in which case they are overlapped and interconnected at their ends as shown in Fig. 3. The upper and lower body halves may be joined by riveted strips e, Fig. 1.
Patent GB-816541-A (GB)
Title: Tubular heat exchange apparatus
Inventor: KEELING GEORGE WILLIAM
IPC: F28D1/03
Filed: 1956-07-27
Abstract: 816,541. Heat exchangers. SERCK RADIATORS Ltd. July 11, 1957 [July 27, 1956], No. 23248/56. Class 64(3) A heat exchanger comprises spaced, parallel rows of tubes a, the tubes in each row being separated by webs b in which laterally projecting tongues c are formed, the space being adjacent tube rows being occupied by a thin, corrugated metal sheet e the ridges of which are in contact both with the tubes and the tongues, each tube row being formed from two metal sheets bonded together by rolling at predetermined positions and then dilated at intermediate positions by fluid pressure to form the tubes a and interconnecting webs b. The corrugated sheet e is preferably bonded in position between the tube rows by soldering or brazing.
Patent GB-422894-A (GB)
Title: Improvements relating to condensers
IPC: H01G4/224
Filed: 1934-08-11
Abstract: 422,894. Condensers. ELEKTRIZITATSAKT.-GES. HYDRAWERK, 32, Drontheimerstrasse, Berlin. Aug. 11, 1934, No. 23276. Convention date, Aug. 25, 1933. Drawings to Specification. [Class 38 (ii)] [See also Group XXXVI] Casings of varnished pasteboard for condensers are made with a strip at the upper inner end having a rough surface to enabe the sealing material to grip firmly. This may be effected by roughening after varnishing &c., by covering the naturally rough border with a protective strip during varnishing and subsequently removing the strips.
Patent GB-1125878-A (GB)
Title: Improvements in or relating to computor reels
IPC: G11B23/037
Filed: 1967-05-19
Abstract: 1,125,878. Tape reels. NORTHWEST PLASTICS Inc. 19 May, 1967 [5 July, 1966], No. 23292/67. Heading B8M. A tape reel comprises a generally I-beam sectioned hub 10, the inner and outer flanges of the I-beam describing inner and outer cylinders connected by a web 15, the web having a series of angularlyspaced apertures therein, angular fingers 19, 23 connected alternately to opposite end edges of the outer flange 14 and extending through the apertures in the hub, and a pair of ring-shaped side flanges 11, 12 secured to the ends of the fingers. The angular fingers 19, 23 are preferably L-shaped, with an inwardly projecting portion and a transverse portion extending parallel to the hub axis, the ends of the fingers terminating substantially flush with the end of the outer flange 14. The axially inner surface of each side flange is preferably provided with sockets or ribs 30, 31 engaging the ends of the fingers. One or both side flanges may be provided with an axially projecting rib at the radially inner edge of the flange, the rib contacting the web of the hub.
Patent GB-1105793-A (GB)
Title: Improvements in or relating to the manufacture of flexible sheet material, especiallyartificial leathers
IPC: D04H1/30
Filed: 1966-05-25
Abstract: Polyurethanes are made in the Examples by adding 2,4 toluylene diisocyanate to polypropylene gycol ether then; (a) heating and adding water and dimethylformamide, heating and adding a solution of diethylamine in dimethylformamide then adding 2,4 toluylene diisocyanate in dimethyl formamide or (b) heating and adding diphenylmethane-4,41-diisocyanate reacting then adding dimethylformamide and hydrazine hydrate, then adding polyvinylchloride followed by water and dimethylformamide. The polyurethane solutions are used to impregnate fibres, the polymer being precipitated by added water.ALSO:Artificial leather is made by impregnating a self-supporting web of collagen fibres with a solution or dispersion of polyurethane in a hygroscopic medium then adding water to the web at 1-90 DEG C to precipitate the polyurethane and wash out medium. The medium, e.g. dimethylformamide, may also contain 1-50% by weight of the polyurethane of a vinyl polymer, e.g. polyvinyl chloride or polyvinyl acetate; diethyl amine or hydrazine hydrate, dyes and pigments can also be present.  The impregnated material can be smoothed on both sides, one side can then be further smoothed with abrasive cloth and the material may be provided with an upper surface finish.
Patent GB-487009-A (GB)
Title: Process for obtaining high standard and easily filtered calcium hypochlorite
IPC: C01B11/06
Filed: 1937-08-25
Abstract: Neutral or "slightly basic" calcium hypochlorites are obtained by the chlorination of an aqueous suspension of lime, strongly basic hypochlorite or bleaching powder, the formation of hypochlorite crystals being initiated in the presence of previously formed neutral or "slightly basic" solid calcium hypochlorite.  "Slightly basic" calcium hypochlorites are defined as products having a basicity weaker than corresponds to 1 mol. calcium hydroxide per mol. calcium hypochlorite.  The addition of the "seeding" hypochlorite should not be made so early in the chlorination that the crystals are completely or partially dissolved before the reaction product commences to crystallize.  The addition may be repeated once or several times during chlorination, if desired while the chlorine is being introduced.  From 5-300 per cent or more neutral or "slightly basic" hypochlorite reckoned on the weight of hypochlorite to be formed may be present.  For the production of a practically neutral product, the temperature should not exceed 35 DEG  C., 20-25 DEG  C. being suitable.  For the production of "slightly basic" hypochlorite, a temperature of above 40 DEG  C. may be employed.  The process may be carried out cyclically by withdrawing part of the suspension after chlorination and adding it to a suspension of basic hypochlorite, preferably dibasic, and again chlorinating. Alternatively, the solid part of the withdrawn suspension may be separated by centrifuging or filtration, and the filtrate treated with lime to form basic hypochlorite, to which is added a supplementary quantity of basic hypochlorite, if desired, and the remaining part of the chlorinated suspension.  The mixture is chlorinated after dilution with water if necessary.  Only a small part of the chlorinated suspension may be withdrawn at a time. The crystals obtained can be easily filtered, dried and washed. Drying may be effected in a current of air at 60-105 DEG  C.
Patent GB-480706-A (GB)
Title: Improvements in or relating to warp stop motions
IPC: D03D51/20
Filed: 1936-08-26
Abstract: 480,706. Warp stop-motions. WAGNER, C., (trading as WAGNER, E. T., [Firm of]). Aug. 26, 1936, No. 23466. [Class 142 (i)] The warp threads guided by rods 3, 4, 5 on side plates 1 support droppers 14, 15 guided on one or more flat rails 6, 7 carried by levers 10, 11 oscillatable about pins mounted on the side plates. A fallen dropper moves into the path of an oscillating or reciprocating member, such as oscillating rails 12, 13. The corresponding supporting rail is thereby operated and the loom is stopped, for example, by a pin 16 connected by a Bowden wire 17 or links to mechanical or electrical stopping mechanism. Two or more guide rails 6, 7 may be connected by a pin 16 movable in slots therein in one direction, so that actuation of one guide rail does not cause actuation of the other. The rails 12, 3 may be carried by arms 8 on the rod 4, which is furnished with a slotted lever oscillated by a pin on a rod or wheel. The droppers may be of round or flat cross-section.
Patent GB-898182-A (GB)
Title: Improvements in the stabilization of halogenated hydrocarbon polymers
IPC: C08K5/01
Filed: 1960-07-05
Abstract: Polymers which are halogen substituted hydrocarbons are stabilized by the addition of an olefinically unsaturated terpene, which may be substituted by a hydrocarbon, halogen, hydroxyl, or keto radical and an organic thiol or disulphide.  Polymers specified are homo-and copolymers of vinyl or vinylidene chloride or fluoride and chloroprene, chlorinated polyvinyl chloride, and chloro-sulphonated ethylene.  The terpenes may be mono- or polycyclic of the general formula (C5H8)x when x is from 2 to 6.  Bicyclic terpenes wherein one ring has not more than four carbons and the other carries at least one exo-alkylene group are preferred.  There is an extensive list of suitable terpenes.  The thiols or disulphides have the formula R-S-H or R-S-S-R1 where R and R1 are alkyl, hydroxyalkyl, mercaptoalkyl, carboalkoxyalkyl, haloalkyl, arylalkyl, aryl, alkaryl, haloaryl, mercaptoaryl, mercaptoalkaryl, carboalkoxyaryl, carboxyaryl, cycloalkyl, furyl, furfuryl or thienyl groups.  Many suitable compounds are mentioned.  Some of the exemplary compositions also contain glycerol triricinoleate.  The stabilized polymers may be used to prepare films, filaments, fibres, foils and coatings. Specification 881,534 is referred to.
Patent GB-1095274-A (GB)
Title: Electromagnetic waveguide mode filter
IPC: H01P1/163
Filed: 1965-06-02
Abstract: 1,095,274. Waveguide mode filters. COMPAGNIE GENERALE D'ELECTRICITE. June 2, 1965 [July 30, 1964], No. 23603/65. Heading H1W. A parasitic waveguide mode of order m, (n + p) is eliminated from a waveguide utilizing a transmission mode of order m, n by coupling the transmission guide to an auxiliary dissipative guide dimensioned to transmit a mode of order m, q having a phase velocity equal to that of the parasitic mode in the transmission guide. In the sole example described, a circular transmission waveguide of diameter d utilizing the TE 01  circular-electric mode is coupled, over a certain axial distance, to an auxiliary coaxial guide of diameter D which transmits a coaxial TE 01  mode at a certain phase velocity. This phase velocity may be made equal to that of a parasitic TE 02  mode in the transmission guide by making D/d = r 0,3 /r 0,2  where r 0,2  and r 0,3  are the 2nd and 3rd order zeros of the Bessel junction J 1 (x), x being a normalized radial coordinate. The equation expresses the fact that the parasitic TE 02  mode has the same velocity as the TE 03  mode resulting from the superposition of the TE 02  mode upon the coaxial TE 01  mode. The whole of the parasitic mode energy is coupled to the coaxial guide which is provided with absorptive elements at either end. The inner guide may be made from a dielectric tube 8 provided with a conductive layer in the form of rings 9 separated by coupling slots. Non-uniform coupling, using triangular, exponential or cosine-squared distribution, may be used. Other forms of coupling structure may be used, e.g. circular slots, or a conductive-wire winding. The external conductor may be solid or may comprise a winding 10 of insulated wire supported upon the dielectric internal lining of a conductive tube 12. This lining may be divided into two coaxial parts by a cylinder 13 of fine metallic gauze. The band-width of the arrangement may be improved by providing dielectric or conductive loading at intervals in the coaxial guide (e.g. dielectric load 19) to achieve a non-uniform phase-velocity. The coaxial guide may contain distributed dissipative material or may be coupled by slots to a surrounding dissipative medium.
Patent GB-1016601-A (GB)
Title: Improved filamentary material
IPC: D01D10/04
Filed: 1962-06-20
Abstract: Filamentary material made from an oxymethylene polymer is subjected to a temperature between 45 and 5 DEG C. below the crystalline melting-point of the polymer for a time sufficient to increase the crystallite size of the polymer while maintaining the material under sufficient tension, if necessary, to prevent surface fusion thereof. The material may be filaments, yarns or knitted or woven fabrics of oxymethylene polymer, or copolymer comprising oxymethylene and oxyethylene groups.  The process, while imparting strength and creep resistance to filaments (Division B4-B5) may be used to set yarn or fabric in a predetermined shape.  Yarn may be bulked, voluminised or textured by being held in a crimped, curled or looped configuration, as by knitting, twisting, or use of meshed gears or stuffing box, while heat is applied.  An increase on crystallite size of at least 15% may be achieved by heating the material for e.g. 0.5-15 minutes at 150-160 DEG C.  Heating may be effected by e.g. steam or air.  In Example 1, a yarn melt-spun from a copolymer of trioxane and ethylene oxide is, drawn, twisted, heated on the bobbin at constant length for 15 minutes at 160 DEG C. and the twist is then removed by back twisting, resulting in a bulked yarn.  In Example 4, ladies stockings, knitted from the same co-polymer are pre-boarded at 115 DEG C. for 1 minute, dyed, and post-boarded at 160 DEG C. for 5 minutes.
Patent GB-847051-A (GB)
Title: Novel pentane derivatives and a process for the manufacture thereof
Inventor: PARSONS ANTHONY MESNARD
IPC: C07D211/22
Filed: 1958-07-23
Abstract: The invention comprises esters of the general formula :- <FORM:0847051/IV(b)/1> and acid addition salts thereof wherein R is a phenyl or naphthyl or a nitro and/or a methoxy phenyl radical and a process for the manufacture thereof whereby 5-(11-methyl-piperidyl-41)-pentanol-2 with an appropriate benzoic or naphthoic acid halide and, if desired, converting the resulting ester hydrohalide into the free ester by treatment with a base or into a further acid addition salt by cationic exchange or treatment with a base followed by treatment with an acid. 5-(11-Methyl-piperidyl-41)-pentanol-2 and its hydro-bromide is prepared by reacting 4-vinyl-pyridine with sodio ethyl acetoacetate to give ethyl 2 - acetyl - 4-(pyridyl-41)-butyrate (and its picrate) which is subjected to alkaline hydrolysis to give 5-(pyridyl-41)pentanone-2 this in turn is reduced to 5-(pyridye-41)-pentanol-2 (and its hydrobromide) either by lithium aluminium hydride, hydrogen in the presence of Raney-nickel, or potassium boron hydride, and the alcohol is quaturnised with methyl bromide and reduced by hydrogen and Raney-nickel.
Patent GB-998554-A (GB)
Title: Improvements in or relating to down draught diverters for gas-fired appliances
Inventor: RADLEY STEWART ALBERT
IPC: F23M9/00
Filed: 1960-07-07
Abstract: 998,554. Down draught diverters. RADIATION Ltd. July 7, 1961 [July 7, 1960], No. 23832/60. Headings F4J and F4W. A down draught diverter for gas-fired appliances comprises a casing with a baffle between an inlet and an outlet which forms primary and secondary passages between the inlet and outlet, the primary passages containing restrictions to throttle the combustion gas flow, and the secondary passages being directed downwards towards further outlets in the casing, and joining the primary passages near these further outlets. As shown, the casing 1 is rectangular in section, with a cylindrical outlet 3, and has a diamond-shaped baffle 6 extending across the section. This baffle may alternatively be a flat horizontal sheet. The restrictions consist of curved sheets of metal with portions 11, 12, 13 and 14, of which the throttling face 11 curves in towards the baffle, and the ends 14 project through the further outlets 10. The diverter can be attached, e.g. to a water heater, by clips 15. Specification 926,561 is referred to.
Patent GB-1018853-A (GB)
Title: Method for preparing alkali metal pyrrolidones
Inventor: MUTAFFIS THOMAS DIMITRIOUS
IPC: C08G69/24
Filed: 1964-06-09
Abstract: Alkali metal a -pyrrolidones are prepared by passing a -pyrrolidone in the form of a film through a reaction zone maintained at temperature and pressure conditions above the dew point of water, wherein it is contacted with an alkali metal hydroxide, carbonate or mixture thereof at 170-250 DEG  C., whereby the alkali metal a -pyrrolidone remains in the film and the water formed is vaporized. The vaporization may be aided by the passage of a stream of an inert gas, e.g. nitrogen.  The alkali metal base may be introduced in solution in a vaporizable solvent, e.g. an alcohol, ether, ketone, hydrocarbon or water.  Films which may be used are those formed by turbafilm or wipe film evaporators, those formed by trickling pyrrolidone through packed columns, and films formed in falling film towers.  The thickness of the film may be up to 0.5 inch.  The alkali metal pyrrolidones may be employed as catalysts in the polymerization of pyrrolidone.
Patent GB-505010-A (GB)
Title: Method and means for repairing textile fabrics
IPC: D03D29/00
Filed: 1937-11-01
Abstract: 505,010. Sewing. ROSS, A., and ROSS, S. Nov. 1, 1937, No. 23920. [Class 112] A hole in woven fabric 2 is repaired by using a patch 1 of similar material which has several of the threads adjacent and parallel to its edges removed so as to leave threads 3 projecting from its edges. The patch 1 is laid over the hole in the fabric 2 (as shown) and the projecting threads 3 are woven into the fabric 2, close up to the edges of the patch, by a hooked needle 7 (as shown). According to the Provisional Specification, a comb-like device may be employed to assist in placing the patch on the fabric and in spacing the threads for drawing into the fabric. This device may be provided in several sizes to suit various kinds of fabric, and may be made in a four-sided assembly to deal with all sides of a patch simultaneously ; the device may be extensible. Specification 8975/97, [Class 112], is referred to.
Patent GB-532349-A (GB)
Title: Improvements relating to driving rollers for machines for mowing lawns and the like
IPC: A01D34/54
Filed: 1939-08-19
Abstract: 532,349. Hollow rollers. WEBB & CO., Ltd., H. C., TAYLOR, F. W., and KENDRICK, H. Aug. 19, 1939, No. 23942. [Class 34 (i)] [Also in Group I] The driving roller of a mowing machine is made by binding a sheet of metal a to a cylindrical form and welding the edges together and to a ribbed reinforcing strip e. Each end cap b has an outwardly directed flange c which is welded to the interior of the cylinder, after which the cylinder end is pressed inwardly. Triangular pressings g secured to the end caps have central boss parts h carrying bearing sleeves i. The pawl and ratchet mechanism m is enclosed by a cover q.
Patent GB-1128984-A (GB)
Title: Diacyl peroxide compositions
IPC: C07C409/34
Filed: 1966-05-27
Abstract: 1,128,984. Stable diacyl peroxide solutions. WALLACE & TIERNAN Inc. 27 May, 1966 [1 June, 1965], No. 23980/66. Heading C2C. Diacyl peroxides compositions which are safe, as hereinafter defined, comprise diacyl peroxides of the formula where R is a C 1-5  alkyl group, and such an amount of such a solvent having a vapour pressure substantially the same as that of the peroxide and selected from aliphatic hydrocarbons, aliphatic ketones, aliphatic esters, aliphatic ethers, aliphatic ketones and mixtures thereof, provided that the solvent is not an aliphatic hydrocarbon when the peroxide is diisovalenyl peroxide. The compositions are safe if they comply with the following: (1) they require a venting aperture of 10 mm. or less when subjected to a test in which a 5 g. sample of the composition is inserted in a cylindrical brass vessel of volume 235 c.c. having a removable apertured disc in the side wall and being closed at the top with a crowned shape, aluminium rupture disc prestressed to 90% of its burst strength at 98-100 p.s.i.g.; there are 74 apertured discs in which the diameter of the bore varies expotentially from 1-24 mm.; the sample in the cylinder is rapidly heated and the rupture disc burst or remains intact according to the size of the bore of the aperture disc; (2) the compositions exhibit no sensitivity to shock when subjected to the known impact tests; (3) the compositions exhibit mild to rapid decomposition, but not explosive decomposition, when subjected to a heat test comprising heating a 1 g. sample in a test tube at a rate of 4‹ C. per minute; and (4) the compositions exhibit no changes in peroxide assay, or active oxygen concentration, that result in impact sensitive products. The compositions may be prepared by (1) mixing hydrogen peroxide and an anhydride of the appropriate acid in the presence of the solvent and subsequently neutralizing the reaction mixture or (2) mixing the solvent and an aqueous alkaline solution, adding hydrogen peroxide to the resulting mixture and finally adding the appropriate acid halide; in both processes increase in temperature is prevented by cooling. Examples relate to compositions containing dipropionyl peroxide, diacetyl peroxide, diisobutyryl peroxide and di-2-methylpentanoyl peroxide, the solvents being selected from light naphtha, mineral spirits, hexyl acetate, diisobutyl ketone, ethylene glycol monobutyl ether, heptane, ethylbutyl ketone, methyl isoamyl ketone, methyl amyl acetate, ethylene glycol monoethyl ether acetate, dimethyl phthalate, ethylene glycol monobutyl ether acetate, diisobutyl ketone, ethylene glycol mono butyl ether, diacetone alcohol and 2- ethylhexyl acetate.
Patent GB-697272-A (GB)
Title: Improvements in conveying means for use in coal-mines and the like
IPC: E21F13/06
Filed: 1951-10-15
Abstract: 697,272. Endless-chain conveyers. BRITISH JEFFREY-DIAMOND, Ltd., and PEARSON, D. Feb. 19,1952. [Oct. 15, 1951] No. 23995/51. Class 78 (i). In conveying means for use in coal mines of the kind including one or two conveyers 6, Fig. 1, extending along the working face B and delivering directly on to the end of a gate conveyer 1, each conveyer 6 comprises an endless chain carrying pivoted scraper arms 14 which has its runs disposed side-by-side and is driven from a driven shaft on the conveyer 1 through a gear box 25. The conveyer 1 comprises two spaced endless chains arranged in vertical planes and connected bv scrapers 2. The sprockets 3, Fig. 3, around which the conveyer passes at its receiving end, are mounted on a shaft 4, each end of which carries also a sprocket 24. Chains 26 connect the sprockets 24 to sprockets 27 rotatable on stub shafts 28 mounted in the gear boxes. Each sprocket 27 is integral with a bevel gear 29 which meshes with a bevel gear 30 rotatably mounted on an inclined shaft 31. This shaft is connected by chain-andsprocket gearing 35 to the shaft 9 which carries the driving sprocket 8 for the face conveyer. The gear 30 can be locked to the shaft by a dogclutch (not shown) which is actuated by a handle 39 through link mechanism 38. The receiving end of the conveyer 1 can be extended to follow the coal face B by hydraulic rams 5. The chains of the conveyer 6 are guided by plates 10, 11 formed in sections and bolted to the base plate 12, which also is formed in sections. When the scrapers 14 reach the sprocket 8, they are raised by guide bars 16 into substantially upright position within a casing 17, Fig. 6. Rollers 22 mounted on this casing support a cable 23 supplying power to a stripping and loading machine.
Patent GB-436411-A (GB)
Title: Improvements relating to motor vehicle steering wheels
IPC: B62D1/08
Filed: 1934-08-20
Abstract: 436,411. Hand wheels. CLIFFORD COVERING CO., Ltd., and JOSEPH, S. C., Wharfdale Road, Tyseley, Birmingham. Aug. 20, 1934, No. 24008. [Class 80 (iv)] The inner ends of wire or strip spokes e are enclosed in grooves between two steel rings c, d which are bolted to either the upper or the lower side of a flange b on the hub a. A reinforcing ring h may be included in the assembly.